Britain’s biggest train company has warned passengers to expect disruption due to “widespread IT issues”, Paralel.Az reports citing The Independent.

Govia Thameslink Railway (GTR) – parent company of Southern, Thameslink, Gatwick Express and Great Northern – issued an alert on the brands’ social media channels.

The message stated: “We are currently experiencing widespread IT issues across our entire network. Our IT teams are actively investigating to determine the root cause of the problem."